首页
登录
职称英语
[img]2022m1s/ct_ve01004001z2021j_eyyjsad_0192_220106[/img] [br] [originaltext]
[img]2022m1s/ct_ve01004001z2021j_eyyjsad_0192_220106[/img] [br] [originaltext]
游客
2024-08-04
4
管理
问题
[br]
The scalpel is one of the oldest inventions in medicine. It is a small, light and very sharp knife. People used it for the first time around 3000 BC in the area of modern Iraq. The scalpel did not change very much for 4,000 years.
The Chinese invented acupuncture needles around 2000 BC. At first, they did not make needles from metal, but from stone. Today, people in China and other countries use acupuncture for many illnesses.
People in southern Italy invented the first false teeth in about 700 BC. They used pieces of bone, or sometimes second-hand human teeth! After that, false teeth did not change for the next 2,500 years until, in 1770, a Frenchman called Alexis Duchateau first used porcelain—a hard, white material that we still sometimes use today.
Zacharias Jansen from Holland made the first microscope in about 1590. Through it, objects appeared nine times bigger than their real size, but it did not give a very clear picture. Jansen did not use his invention very much because people at that time did not want to look at small things!
选项
答案
2000
解析
根据原文可知,中国人大约在公元前2000年发明了针灸针。因此,填入2000。
转载请注明原文地址:https://tihaiku.com/zcyy/3705972.html
相关试题推荐
WhyhasMarybeenabsentfromclass?[br][originaltext]W:Annemissedclassag
WhyhasMarybeenabsentfromclass?[br][originaltext]W:Annemissedclassag
WhyhasMarybeenabsentfromclass?[originaltext]W:Annemissedclassagain,d
WhichofthefollowingisNOTtrue?[br][originaltext]Theweatherwascloudyt
WhichofthefollowingisNOTtrue?[br][originaltext]Theweatherwascloudyt
WhichofthefollowingisNOTtrue?[originaltext]Theweatherwascloudytodayw
Whichofthefollowingdidthecallerhavedecorated?[br][originaltext]M:Hel
Whichofthefollowingdidthecallerhavedecorated?[br][originaltext]M:Hel
Whichofthefollowingdidthecallerhavedecorated?[originaltext]M:Hello,th
Thesesessionswithacounselorare______.[br][originaltext]Counsellor:Hello
随机试题
Asoccerreferee【B1】______forscoringagoalwhiletakingchargeforagame
[originaltext]M:HiTracy!Whatdoyouthinkofourclassonchildren’sliterat
IntroductionLinguisticshasbothpracticalandphilosophica
[originaltext](I=Interviewer;V=Victoria)I:Victoria,Iwonderthen,i
Thanksgivingisa(tradition)______festivalintheUSandCanada.traditional本题考
下列可作为核定建设项目交付资产的实际价值依据的是( )。A.工程项目竣工决算价
测定非特异性细胞免疫功能A.免疫印迹法B.细胞毒试验C.反向溶血空斑试验D.E花
下列指数中,属于个体指数的是()。A.海尔电冰箱的价格指数 B.衣着类价格指数
下列哪些病因导致的心衰不宜使用血管扩张剂进行.治疗? A.二尖瓣狭窄B..
(2018年真题)宜用水飞法进行炮制的中药是( )A.雄黄 B.芒硝 C.
最新回复
(
0
)